Package org.graphstream.algorithm.generator

Class FlowerSnarkGenerator

java.lang.Object
org.graphstream.stream.SourceBase
org.graphstream.algorithm.generator.BaseGenerator
org.graphstream.algorithm.generator.FlowerSnarkGenerator
All Implemented Interfaces:
Generator, org.graphstream.stream.Source
public class FlowerSnarkGenerator
extends BaseGenerator
Flower snark generator.

In the mathematical field of graph theory, the flower snarks form an infinite family of snarks introduced by Rufus Isaacs in 1975. As snarks, the flower snarks are a connected, bridgeless cubic graphs with chromatic index equal to 4. The flower snarks are non-planar and non-hamiltonian.

Source : Wikipedia
Scientific Reference :
Isaacs, R. "Infinite Families of Nontrivial Trivalent Graphs Which Are Not Tait Colorable." Amer. Math. Monthly 82, 221–239, 1975.

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.graphstream.stream.SourceBase

    org.graphstream.stream.SourceBase.ElementType

  • Constructor Summary

    Constructors 
    Constructor Description
    FlowerSnarkGenerator()  

  • Method Summary

    Modifier and Type Method Description
    void begin()
    Begin the graph generation.
    boolean nextEvents()
    Perform the next step in generating the graph.

    Methods inherited from class org.graphstream.algorithm.generator.BaseGenerator

    addEdgeAttribute, addEdgeAttribute, addEdgeAttribute, addEdgeLabels, addNodeAttribute, addNodeAttribute, addNodeAttribute, addNodeLabels, end, isUsingInternalGraph, removeEdgeAttribute, removeNodeAttribute, setDirectedEdges, setRandomSeed, setUseInternalGraph

    Methods inherited from class org.graphstream.stream.SourceBase

    addAttributeSink, addElementSink, addSink, attributeSinks, clearAttributeSinks, clearElementSinks, clearSinks, elementSinks, removeAttributeSink, removeElementSink, removeSink, sendAttributeChangedEvent, sendAttributeChangedEvent, sendEdgeAdded, sendEdgeAdded, sendEdgeAttributeAdded, sendEdgeAttributeAdded, sendEdgeAttributeChanged, sendEdgeAttributeChanged, sendEdgeAttributeRemoved, sendEdgeAttributeRemoved, sendEdgeRemoved, sendEdgeRemoved, sendGraphAttributeAdded, sendGraphAttributeAdded, sendGraphAttributeChanged, sendGraphAttributeChanged, sendGraphAttributeRemoved, sendGraphAttributeRemoved, sendGraphCleared, sendGraphCleared, sendNodeAdded, sendNodeAdded, sendNodeAttributeAdded, sendNodeAttributeAdded, sendNodeAttributeChanged, sendNodeAttributeChanged, sendNodeAttributeRemoved, sendNodeAttributeRemoved, sendNodeRemoved, sendNodeRemoved, sendStepBegins, sendStepBegins

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.graphstream.stream.Source

    addAttributeSink, addElementSink, addSink, clearAttributeSinks, clearElementSinks, clearSinks, removeAttributeSink, removeElementSink, removeSink

  • Constructor Details

  • Method Details

    • begin

      public void begin()
      Description copied from interface: Generator
      Begin the graph generation. This usually is the place for initialization of the generator. After calling this method, call the Generator.nextEvents() method to add elements to the graph.

    • nextEvents

      public boolean nextEvents()
      Description copied from interface: Generator
      Perform the next step in generating the graph. While this method returns true, there are still more elements to add to the graph to generate it. Be careful that some generators never return false here, since they can generate graphs of arbitrary size. For such generators, simply stop calling this method when enough elements have been generated. A call to this method can produce an undetermined number of nodes and edges. Checking nodes count is advisable when generating the graph to avoid an unwanted big graph.
      Returns:
      true while there are elements to add to the graph.